CM570

Damaged or corroded ECM connectors on a Cummins ISX with CM570 engine electronics frequently cause intermittent gauge failures, J1939 communication errors, sensor issues, and costly downtime. Replacing the entire engine-to-cab harness is very expensive and time-consuming.

Kustom Truck Parts offers targeted Cummins CM570 engine harness repair kits that solve the problem at the connector level — whether it’s the 50-pin OEM ECM plug or the 31-pin round OEM option connector on the engine-to-cab harness. Each kit includes genuine OEM plugs with gold-plated terminals, pre-crimped 18" GXL copper wire (color coded for easy installation), J1939 Canbus cable, J1587 twisted-pair datalink wires and cavity plugs for any unused positions.

Built for Freightliner, Western Star, Peterbilt, and Kenworth applications, these kits restore reliable ECM communication without a full harness replacement. Browse below to match the correct connector for your CM570 configuration, or contact our team for serial number verification.